Shuttle checking and releasing mechanism for looms.



No. 645,030. Patented" Mar. 6,1900.

H. I. HARBIMAN.

(Application filed Nov. 18, 1899.)

(No Model.)

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rrEn STATES PATENT OFFICE.

HENRY I. HARRIMAN, OF NEW YORK, N. Y.

SHUTTLE CHECKING AND RELEASING MECHANISM FOR Looms;

SPECIFICATION forming part of Letters Patent N 0. 645,030, dated March 6, 1906. Application filed November 18,1899. Serial No. 737,455- (No model.)

To 'aZZ whom it may concern:

Be it known that I, HENRY I. Hnnnnmma citizen of the United States, residing at New York, in the county of New York, State of New York, have invented a certain new and useful Improvement in Shuttle Checking and Releasing Mechanisms for Looms, of which the following is a specification, reference being had therein to the accompanying drawings.

The invention in the best form thereof which has been devised by me is illustrated in the said drawings, in which-- Figure 1 is a sectional elevation of part of a loom with the invention applied thereto. Fig. 2 is a detail View in section of certain of the features of Fig. 1.

Having reference to the drawings, 1 designates an end frame of a loom.

2 is one of the lay-swords.

3 is one of the lay-pitmen.

1 is the crank-shaft of the loom.

5 is the cam-shaft.

6 is the front of the shuttle-box at one end of the lay. 7 is the back of the said shuttlebox. 8 is the swell or binder of such shuttlebox. 9 is a shuttle occupying a position at one end of its flight in the said shuttle-box. 10 is a protector-finger making contact with the said swell or binder 8. 11 isa protectorshaft mounted in bearings on the lay and provided with an arm 12, on which the said pro- 13 designates the dagger on the said protector shaft, the same being intended to act, as usual, in connection with the ordinary frog (not shown) in case the shuttle fails to complete its flight from one shuttle-box into the other.

The foregoing parts are all common to looms in general and are or may be as usual or as" preferred.

In accordance with the invention I employ in a loom, in connection with the swell or binder, certain novel means,which I will now proceed to explain, whereby a yielding force is transmitted to the swell or binder in a manner to bear the same inwardly into the shuttie-box to act with yielding pressure against the shuttle and check or arrest the latter as it enters such shuttle-box in completing its flight from the opposite end of the lay and whereby also the yielding pressure which is exerted by the swell or binder against the shuttle in the shuttle-box is relieved to any predetermined extent or wholly, if desired, before the picker is operated to drive the shuttle out of such shuttle-box in order to lessen the strain and resistance which are incident to picking. The essentials of the said means comprise a rotating cam, as 14:, a lever, as 15, in operative relations with the said cam to provide for its actuation from or by the latter, and a spring, as 16, in operative connection with the said lever and the swell or binder and serving to transmit force yieldingly from the lever to the swell or binder.

Thereby when the lever is moved by the cam in a direction to bring the elastic power of the spring into play the said power is transmitted to the swell or binder, and the latter is borne inwardly into the shuttle-box with a yielding force.

For the purpose of connecting the spring 16 operatively with the swell or hinder 8 and lever 15 I have provided as follows in the illustrated embodiment of the invention: The protector-shaft 11 is furnished with an arm 17, which is fixed thereon. A rod 18 is suspended fromthe said arm, the said rod being provided with a tubular sheath or socket 19, which receives and guides the upper portion of a second rod 20. The lower portion of rod 20 is screw-threaded and receives the shackle 21, which last is connected pivotally with lever 15. Spring 16 is shown herein as a tension-spring. It has one end thereof applied to a pin 22 on the sheath or socket 19 and the other end thereof applied to a pin 23 on a collar 24, that is fixed by a setscrew 25 in place on the lower rod 20. Lever 1.5 is hung or pivoted on a bracket, as 26, applied to the loom-frame. When now the rotating cam 14: moves lever 15 in a direction to put spring 16 under tension, the power which thereby is stored up in the said spring acts to cause the swell or binder to be pressed into the shuttle-box into such position that as the moving shuttle enters the shuttle-box at the end of its flight in one direction one side thereof shall encounter the surface of the swell or binder and the resulting friction and compression of the shuttle as it advances between the swell or binder and the opposite side of the shuttle-box shall serve to bring the shuttle to a state of rest by the time it has entered to the proper extent into the shuttle-box. The parts are constructed and arranged to cause the strain which is exerted to move the swell or binder inward into the 'shuttle-box to become relaxed prior to the pick of the shuttle in order that at the time of the pick the shuttle may be relieved to the required extent, or wholly, of compression.

In order to enable the effect of the spring upon the swell or binder to be varied, so as to alter the degree of the pressure against the shuttle, the point of attachment of the upper rod 18 to the arm 17 may be shifted toward or from the center of the protecton-shaft 11. For the purpose of permitting this the arm 17 on the protector-shaft is constructed, as by forming a number of holes 171 therein, to enable the said rod to be connected therewith at different points in its length. This variation of effect may also be secured by setting the collar 24 at adifierent point on the rod or by screwing rod 20 into or out of the shackle 21. The latter two adjustments act by Varying the tension of the spring 16, while that mentioned first acts by varying the leverage. As will be apparent, the said latter two adjustments enable the spring to be relieved wholly from stress, it required,

' when the low part of cam 14, is presented to lever 15. It is contemplated that the collar 24 shall engage with the lower end of socket or sheath 19 in order thereby to determine the normal contracted length of the connection; but it is not necessary in all cases that the said collar should act thus as a stop.

The parts 18, 19, 20, and 21, together with spring 16, constitute one available form of ex tensible and telescoping yielding connection, having operative relations with the lever 15 and the swell or binder 8.

The cam 14 is mounted upon the camshaft 5. It is therefore made double in order that it mayact once for each revolution of the ehank-shaft. For convenience of application the said cam is shown formed in halves,- which are clamped together upon the cam-shaft, although it may otherwise be formed and applied in practice.

It will be obvious that the swell or hinder at the opposite end of the lay from that which is shown in the drawings is operated from the protector-shaft in the same manner as is the swell or binder in the drawings.

The direction'of rotation of the cam-shaft 5 and cam 14 is indicated by the arrow near the same in Fig. l of the drawings. Each half of the cam has its most prominent portion in the lead, and following the said prominent portion the acting face 'of the cam recedes gradually toward the center of the shaft. The result of this is that the cam first acts to move the lever 15 to the full extent of its swing, after whichthe cam permits the lever to recede gradually before releasing the same. This accommodates and proportions the resistance which the shuttle encounters in entering the shuttle-box to the force with which the shuttle arrives in the latter. Thus when the 'pick is strong and the shuttle arrives promptly in its box the shuttle has to overcome the greatest degree of compression, due to the highest prominence of the cam. When the pick is weak and the shuttle travels more slowly along the shuttle-race, the arrival of the shuttle in the shuttle-box occurs at a later instant, and hence a diminished resistance is encountered.

I claim as my invention- 1. A shuttle checking and releasing mechanism for looms, comprising, essentially, a swell or binder, a rotating cam, a lever in operative relations with the said cam, and a spring in operative relations with the said lever and swell or binder, whereby force is transmitted in a yielding manner through the spring from the lever to the swell or hinder to cause the latter to act upon the shuttle in completing its flight, and the pressure is relieved prior to the next pick.

2. A shuttle checking and releasing mechanism for looms, comprising, essentially, a swell or binder, a finger to act against the swell or binder, an arm moving in unison with said finger, a rotating cam, a lever in operative relations with the said cam, and a spring in operative relations with the said lever and arm, whereby force is transmitted in a yielding manner through the spring from the lever to the swell or binder to cause the latter to act upon the shuttle in completing its flight, and the pressure is relieved prior to the next pick.

3. A shuttle checking and releasing mech anism for looms, comprising, essentially,- a swell or binder, a protector-finger, a protector-shaft, an arm on the protector-shaft, a rotating cam, a lever in operative relations with the said cam, and a spring in operative relations with the said lever and arm, whereby force is transmitted in a yielding manner through the spring from the lever to the swell or binder to cause the latter to act upon the shuttle in completing its flight, and the pressure is relieved prior to the next pick.

4. A shuttle checking and releasing mech-' anism for looms, comprising, essentially, a swell or binder, a finger to act against the swell or binder,- an arm moving in unison with said finger, a rotating cam, a lever in operative relations with said cam, and an extensible connection between said lever and arm having its members combined with each other by means of a spring.

5. A shuttle checking and releasing mechanism for looms, comprising, essentially, a swell or binder, a finger to act against the swell or binder, an arm moving in unison with the said finger, a rotating cam, a lever in operative relations with said cam, and a spring interposed between and in operative relations with the said lever and arm, the arm having provisions for connecting the the center of motion of the arm.

6. A shuttle checking and releasing mech anism for looms, comprising, essentially, a swell or binder, a finger to act against the swell or binder, an arm moving in unison with said finger, a rotating cam, a lever in operative relations with said cam, and an extensible telescoping connection between said lever and arm having its members combined with each other by means of a spring.

7. A shuttle checking and releasing mechanism for looms, comprising, essentially, a swell or binder, a finger to act against the swell or binder, an arm moving in unison with the said finger, a rotating cam, a lever in operative relations with said cam, and an extensible connection between said lever and arm having its members combined with each other by means of a spring and also having the shackle adj ustably combined with one of p in operative relations with said cam, and an extensible connection between said lever and arm comprising telescoping members, a connecting-spring, and a collar on one member engaging with the other member to limit the relative movements of the members and thereby determine the normal length of the con nection.

9. A shuttle checking and releasing meohanism for looms, comprising, essentially, a swell or binder, a lever, a spring in operative relations with the said lever and swell or binder, and a rotating cam in operative rela= tions with the said lever and constructed to occasion the greatest amount of tension in said spring and corresponding compression at the swell or binder first and then gradually diminish the said compression.

In testimony whereof I affix my signature in presence of two witnesses.

HENRY I. HARRIMAN;

Witnessesi M. D. VAUGHN, LEPINE HALL RICE. 

